FixVault

DTC C0089 64: DSC Off Switch: Notes

WARNING: This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DTC C0089:64 (DYNAMIC STABILITY CONTROL) DETECTION CONDITION AND POSSIBLE CAUSE

DTC  C0089:64  DSC OFF switch 
DETECTION CONDITION 
  • Continuous ON signal from the DSC OFF switch for 10 s or more  is detected.
FAIL-SAFE FUNCTION 
  • Permits the control and does not illuminate each warning/indicator light.
POSSIBLE CAUSE 
  • The driver pressed and held the DSC OFF switch for 10 s or more  .
  • Short to ground in the wiring harness between the instrument cluster terminal V and DSC OFF switch terminal B
  • Open circuit in wiring harness between instrument cluster terminal T and DSC OFF switch terminal C
  • DSC OFF switch malfunction
  • Poor connection at connectors (female terminal)
G09785775Courtesy of MAZDA MOTORS CORP.